Pet chew stick



FIG. 1 is a perspective view of a pet chew stick showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is left side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines form no part of the claimed design.

CLAIM The ornamental design for a pet chew stick, as shown anddescribed.